Radio Spectrum Allocation

Radio Spectrum Allocation
ISPANZ Conference
11 May 2016
Intend to cover …
• International framework
• New Zealand allocations
– Cellular & fixed wireless bands
– Industrial, Scientific and Medical (ISM) bands
– Wi-Fi bands
• Interference issues
• Challenges ahead for Wi-Fi
2
International Framework
• Signatory to international treaty
– World Radiocommunication Conference
– Once every four years (last met: Nov 2015)
– Review and revise IRR
• Incorporated by reference into
International Radio
Regulations (IRR)
Radiocommunications Act 1989
• Article 5 of IRR – Table of Frequency Allocations
3
A snapshot of
Article 5 of IRR
Table of Frequency
Allocations
4
Radio Spectrum Allocation in NZ
• NZ being an island country
PRO: does not share land border with other countries
 no issue with cross-border terrestrial coordination
CON: 4.5M population is a small market
 technology taker
• Economies of scale – very important!
EITHER
OR
Influence the world to follow NZ’s way
Harmonise with Asia Pacific, US or Europe?
5
As published on 1 April 2014
6
Radio Spectrum Allocation in NZ
For the most up-to-date allocation, refer to the
Table of Radio Spectrum Usage in New Zealand
(PIB 21)
http://www.rsm.govt.nz/online-services-resources/publications/pibs/21
7
Spectrum harmonisation
•
•
•
•
Cellular & fixed wireless bands
Industrial, Scientific and Medical (ISM) bands
Wi-Fi bands
And many more – TV/radio broadcasting,
satellite, radionavigation, etc.
8
Cellular Mobile & Fixed Wireless
Frequency Band
Frequency Range (Uplink)
Frequency Range (Downlink)
Asia Pac
700 MHz
703-748 MHz
758-803 MHz
US
850 MHz
825-840 MHz
870-885 MHz
900 MHz
890-915 MHz
935-960 MHz
1.8 GHz
1710-1785 MHz
1805-1880 MHz
2.1 GHz
1920-1980 MHz
2110-2170 MHz
Asia Pac
Europe
2.3 GHz
2.5 GHz
2.5 GHz
3.5 GHz
2300-2370 MHz (TDD)
2500-2570 MHz
2620-2690 MHz
2575-2620 MHz (TDD)
3410-3487 MHz (opt. TDD)
3510-3587 MHz (opt. TDD)
9
3G
900
MHz
700 MHz
900
MHz
700 MHz
850
4G
850
Cellular
Mobile
&
Fixed
Wireless
4.5G
MHz
703
803 825
840
748
758
1.8 GHz
870 890 915 935 960
2.1
GHz
1.8 GHz
2 GHz
2.1
GHz
2.2 GHz
2.3 GHz
MHz
2.5 GHz
1880 1920
Crown
1980
2010
2110
2170
2200
2.5 GHz
3.5 GHz
2300
Crown
1785
1805
Crown
1710
2370
Fixed
Wireless
3.5 GHz
MHz
2500
2570
2620
2690
3410
3487 3510
3587
10
Industrial, Scientific & Medical (ISM)
•
•
•
•
•
•
6.765-6.795 MHz
13.553-13.567 MHz
26.957-27.283 MHz
40.66-40.68 MHz
433.05-434.79 MHz
Wi-Fi HaLow
915-928 MHz* (802.11ah)
•
•
•
•
•
•
Wi-Fi
2.4-2.5 GHz
5.725-5.875 GHz
24-24.25 GHz
Wi-Gig
61-61.5 GHz
122-123 GHz
244-246 GHz
a) Different to US version 902-928 MHz
b) Stricter out-of-band limit than AUS
11
Wi-Fi & Wi-Gig bands
• 2.4 GHz (i.e. 802.11b/g/n)
 2400-2483.5 MHz
• 5 GHz (i.e. 802.11a/n/ac)
 5150-5350 MHz
 5470-5725 MHz
 5725-5875 MHz
• 60 GHz (i.e. 802.11ad)
 57-66 GHz
Refer to General User Radio Licence
for Short Range Devices
• 5 GHz
 5725-5850 MHz
• 60 GHz
 57-64 GHz
Refer to General User Radio Licence
for Fixed Radio Link Devices
12
Issues with 5 GHz Wi-Fi band
• MetService’s weather radars are licensed around
5600-5650 MHz at the following nine locations:
Kaeo, Tamahunga, Mamaku, New Plymouth airport, Mahia, Outlook
Hill, Rakaia Trig, Blue Spur Range and Invercargill airport
• Overlapped Wi-Fi channels must be avoided
a) when configuring equipment on-site or near the radars
b) within radial line-of-sight to the radars
13
Interference incident – Example 1
Artefacts in detection due to
single-source interference
14
Interference incident – Example 2
Artefacts in detection due to
on-site interference
15
5 GHz Wi-Fi channel plan
16
Challenges ahead for Wi-Fi
• Congestion in 2.4 GHz Wi-Fi band
• Further studies to expand 5 GHz Wi-Fi band
Possible for Wi-Fi
expansion?
- Airborne Weather Radar
- Earth Exploration Satellite
Wi-Fi
(indoor
only)
Wi-Fi
(indoor &
restrictive
outdoor)
Wi-Fi (indoor & outdoor)
Not Permitted
for Wi-Fi
RADAR
Aeronautical
Radio
Navigation
Fixed Radio Link
Device
TBD
MHz
5150
5250
5350
5470
5600
5650
5725
5850 5875 5925
17
Challenges ahead for Wi-Fi
• Possible competition for spectrum in 5 GHz band
– LTE-U (Unlicensed)
– Intelligent Transport Systems (ITS)
LTE-U
Wi-Fi
(indoor &
restrictive
outdoor)
Wi-Fi (indoor & outdoor)
Not Permitted
for Wi-Fi
RADAR
Wi-Fi
(indoor
only)
ITS
LTE-U
Fixed Radio Link
Device
TBD
MHz
5150
5250
5350
5470
5600
5650
5725
5850 5875 5925
18
Watch this space
• Monitor ongoing international studies
– Relaxing outdoor conditions for 5 GHz Wi-Fi band?
– Expanding Wi-Fi into other parts of 5 GHz?
• Continue to resolve interference to weather
radars with help from wireless ISP industry
19
Q&A
20
21

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